TWO SIGMA INVESTMENTS, LP BELFB — BEL FUSE INC CL B COM STK COMMON STOCK

Ownership history in TWO SIGMA INVESTMENTS, LP  ·  40 quarters on record

AI Ownership Summary

TWO SIGMA INVESTMENTS, LP reported BEL FUSE INC CL B COM STK COMMON STOCK (BELFB) in 40 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows BELFB at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this BELFB ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was TWO SIGMA INVESTMENTS, LP's position in BEL FUSE INC CL B COM STK COMMON STOCK, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

BELFB was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

BELFB stock page TWO SIGMA INVESTMENTS, LP fund profile TWO SIGMA INVESTMENTS, LP full holdings
How TWO SIGMA INVESTMENTS, LP held BELFB — position size vs. price
% of Fund (quarterly)    BELFB price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 6 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED — — — 14,584 +5,342 +57.8% 0.00% $2.9M 2026-05-15 $256.72
2025 Q3 ADDED — — — 9,242 +2,909 +45.9% 0.00% $1.3M 2025-11-14 (Est.) $147.57
2024 Q3 REDUCED 32.6% +4.4% ❌ 6,333 -3,064 -32.6% 0.00% $497K 2024-11-14 $75.89
2024 Q2 REDUCED 8.7% +20.4% ❌ 9,397 -900 -8.7% 0.00% $613K 2024-08-14 $62.34
2024 Q1 REDUCED 54.8% +7.9% ❌ 10,297 -12,499 -54.8% 0.00% $621K 2024-05-15 $66.02
2023 Q4 REDUCED 38.6% -9.4% ✅ 22,796 -14,305 -38.6% 0.00% $1.5M 2024-02-14 $72.28
34 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BELFB

As of 2026 Q1 — sorted by position size

SANTA MONICA PARTNERS LP 3Y 7Y 7.47% Makaira Partners LLC 3Y 7Y 7.29% Nitor Capital Management LLC 3.87% ADVISORY RESEARCH INC 3Y 7Y 2.91% Expect Equity LLC 2.1% Ballast Asset Management, LP 2.09% INVESTORS ASSET MANAGEMENT OF GEORGIA INC /GA/ /ADV 3Y 7Y 2.01% TEMA ETFS LLC 1.77% Grandeur Peak Global Advisors, LLC 3Y 7Y 1.71% Dean Capital Management 3Y 7Y 1.22%

FAQ About TWO SIGMA INVESTMENTS, LP and BELFB

These are the practical questions this page is built to answer before you even open the full history table.

How long has TWO SIGMA INVESTMENTS, LP reported owning BELFB?

TWO SIGMA INVESTMENTS, LP reported BELFB across 6 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported BELFB position in TWO SIGMA INVESTMENTS, LP's portfolio?

The largest reported portfolio weight for BELFB was 0.00% in 2023 Q4.

What is the latest reported BELFB position on this page?

The most recent filing on this page is 2026 Q1, when TWO SIGMA INVESTMENTS, LP reported 14,584 shares, equal to 0.00% of portfolio, with an estimated market value of $2.9M.

What does the chart on this BELFB ownership page compare?

The chart compares TWO SIGMA INVESTMENTS, LP's quarterly BELFB portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did TWO SIGMA INVESTMENTS, LP time their BELFB position?

Based on 13F filing dates vs. subsequent BELFB price moves, TWO SIGMA INVESTMENTS, LP correctly timed 21 out of 39 reported position changes (54%). The annualised alpha on BELFB relative to SPY over the holding period was +22.7%.

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